At a time when advances in science and technology have changed our understanding of our mental and physical selves, it is easy for some to dismiss the discipline of philosophy as obsolete. Stephen Hawking, boldly, argues that philosophy is dead .

Not according to Rebecca Newberger Goldstein. Goldstein, a philosopher and novelist, studied philosophy at Barnard and then earned her Ph.D. in philosophy at Princeton University. She has written several books, won a MacArthur "Genius Award" in 1996, and taught at several universities, including Barnard, Columbia, Rutgers, and Brandeis.

Goldstein's forthcoming book, Plato at the Googleplex: Why Philosophy Won't Go Away , offers insight into the significant—and often invisible—progress that philosophy has made. I spoke with Goldstein about her take on the science vs. philosophy debates, how we can measure philosophy's advances, and why an understanding of philosophy is critical to our lives today.

You came across The Story of Philosophy by Will Durant as a kid. What were your first thoughts?

I grew up in a very religious Orthodox Jewish household and everybody seemed to have firm opinions about all sorts of big questions. I was interested in how they knew what they seemed to know, or claimed to know. That's what I would now call an epistemological question. I was allowed to read very widely, and I got the book The Story of Philosophy out. I must've been 11 or 12. And the chapter on Plato… it was my first experience of a kind of intellectual ecstasy. I was sent completely outside of myself. There were a lot of things that I didn't understand, but there was something abstract and eternal that underlay all the changing phenomena of the world. He used the word "phantasmagoria," which is one of those words I had to look up, and probably one of the few times I've encountered it. I couldn't quite understand what I was reading, but I was hooked.

When did your formal education in philosophy start?

I didn't think I was going to study philosophy. I also loved science, and took out lots of books about science as a kid, and, oh gosh, I ruined my mother's kitchen by trying to do do-it-yourself chemistry experiments. There were all kinds of things that interested me. One of the things about philosophy is that you don't have to give up on any other field. Whatever field there is, there's a corresponding field of philosophy. Philosophy of language, philosophy of politics, philosophy of math. All the things I wanted to know about I could still study within a philosophical framework.

What did your religious family think about your pursuit of philosophy?

It made my mother intensely uncomfortable. She wanted me to be a good student but not to take it too seriously. She worried that nobody would want to marry such a bookish girl. But I ended up getting married at 19. And I wasn't an outwardly rebellious child; I followed all the rules. The problem was, I was allowed to think about whatever I wanted to. Even though I decided very early on that I didn't believe in any of it, it was okay as long as I had freedom of mind. It was fine with my family.

How early do you think children can, or should, start learning about philosophy?

I started really early with my daughters. They said the most interesting things that if you're trained in philosophy you realize are big philosophical statements. The wonderful thing about kids is that the normal way of thinking, the conceptual schemes we get locked up in, haven't gelled yet with them. When my daughter was a toddler, I'd say "Danielle!" she would very assuredly, almost indignantly, say, "I'm not Danielle! I'm this!" I'd think, What is she trying to express? This is going to sound ridiculous, but she was trying to express what Immanuel Kant calls the transcendental ego. You're not a thing in the world the way there are other things in the world, you're the thing experiencing other things—putting it all together. This is what this toddler was trying to tell me. Or when my other daughter, six at the time, was talking with her hands and knocked over a glass of juice. She said, "Look at what my body did!" I said, "Oh, you didn't do that?" And she said, "No! My bodydid that!" I thought, Oh! Cartesian dualism! She meant that she didn't intend to do that, and she identified herself with her intentional self. It was fascinating to me.

And kids love to argue.

They could argue with me about anything. If it were a good argument I would take it seriously. See if you can change my mind. It teaches them to be self-critical, to look at their own opinions and see what the weak spots are. This is also important in getting them to defend their own positions, to take other people's positions seriously, to be able to self-correct, to be tolerant, to be good citizens and not to be taken in by demagoguery. The other thing is to get them to think about moral views. Kids have a natural egotistical morality. Every kid by age three is saying, "That's not fair!" Well, use that to get them to think about fairness. Yes, they feel a certain sense of entitlement, but what is special aboutthem? What gives them such a strong sense of fairness? They're natural philosophers. And they're still so flexible.

There's a peer pressure that sets in at a certain age. They so much want to be like everybody else. But what I've found is that if you instill this joy of thinking, the sheer intellectual fun, it will survive even the adolescent years and come back in fighting form. It's empowering.

What changes in philosophy curriculum have you seen over the last 40 years?

One thing that's changed tremendously is the presence of women and the change in focus because of that. There's a lot of interest in literature and philosophy, and using literature as a philosophical examination. It makes me so happy! Because I was seen as a hard-core analytic philosopher, and when I first began to write novels people thought, Oh, and we thought she was serious! But that's changed entirely. People take literature seriously, especially in moral philosophy, as thought experiments. A lot of the most developed and effective thought experiments come from novels. Also, novels contribute to making moral progress, changing people's emotions.

Exactly. It changes our view of what's imaginable. Commercial fiction that didn't challenge people's stereotypes about characters didn't have the same effect of being able to read others better, but literary fiction that challenges our views of stereotypes has a huge effect. A lot of women philosophers have brought this into the conversation. Martha Nussbaum really led the way in this. She claimed that literature was philosophically important in many different ways. The other thing that's changed is that there's more applied philosophy. Let's apply philosophical theory to real-life problems, like medical ethics, environmental ethics, gender issues. This is a real change from when I was in school and it was only theory.

In your new book, you respond to the criticism that philosophy isn't progressing the way other fields are. For example: In philosophy, unlike in other areas of study, an ancient historical figure like Plato is just as relevant today.

There's the claim that the only progress made is in posing problems that scientists can answer. That philosophy never has the means to answer problems—it's just biding its time till the scientists arrive on the scene. You hear this quite often. There is, among some scientists, a real anti-philosophical bias. The sense that philosophy will eventually disappear. But there's a lot of philosophical progress, it's just a progress that's very hard to see. It's very hard to see because we see with it. We incorporate philosophical progress into our own way of viewing the world. Plato would be constantly surprised by what we know. And not only what we know scientifically, or by our technology, but what we know ethically. We take a lot for granted. It's obvious to us, for example, that individual's ethical truths are equally important. Things like class and gender and religion and ethnicity don't matter insofar as individual rights go. That would never have occurred to him. He makes an argument in The Republic that you need to treat all Greeks in the same way. It never occurs to him that you would treat barbarians (non-Greeks) the same way.

It's amazing how long it takes us, but we do make progress. And it's usually philosophical arguments that first introduce the very outlandish idea that we need to extend rights. And it takes more, it takes a movement, and activism, and emotions, to affect real social change. It starts with an argument, but then it becomes obvious. The tracks of philosophy's work are erased because it becomes intuitively obvious. The arguments against slavery, against cruel and unusual punishment, against unjust wars, against treating children cruelly—these all took arguments.

Which philosophical arguments have you seen shifting our national conversation, changing what we once thought was obvious?

About 30 years ago, the philosopher Peter Singer started to argue about the way animals are treated in our factory farms. Everybody thought he was nuts. But I've watched this movement grow; I've watched it become emotional. It has to become emotional. You have to draw empathy into it. But here it is, right in our time—a philosopher making the argument, everyone dismissing it, but then people start discussing it. Even criticizing it, or saying it's not valid, is taking it seriously. This is what we have to teach our children. Even things that go against their intuition they need to take seriously. What was intuition two generations ago is no longer intuition; and it's arguments that change it. We are very inertial creatures. We do not like to change our thinking, especially if it's inconvenient for us. And certainly the people in power never want to wonder whether they should hold power. So it really takes hard, hard work to overcome that.

How do you think philosophy is best taught?

I get very upset when I'm giving a lecture and I'm not interrupted every few sentences by questions. My style is such that that happens very rarely. That's my technique. I'm really trying to draw the students out, make them think for themselves. The more they challenge me, the more successful I feel as a teacher. It has to be very active. Plato used the metaphor that in teaching philosophy, there needs to be a fire in the teacher, and the sheer heat will help the fire grow in the student. It's something that's kindled because of the proximity to the heat.

What is it like teaching philosophy to students from a variety of backgrounds?

A good philosophy professor needs to be very aware of the different personalities in her class. I've had students who've become so very uncomfortable. They needed a lot of handholding. Some came from very religious backgrounds, and just the questioning sent them into a free-fall. We made our way through. Some of them ended up being my strongest students. Two of them are very successful professional philosophers. But they required a lot of extra time because they felt it so deeply. You're being asked to rethink all sorts of opinions. And when you see that the ground is not very firm, it can distance you from your own family, your upbringing. I went through this. My own philosophical journey distanced me from my family, the people I loved most. That was very difficult, so I know what they're going through. It can be a very intense journey.

What's happened to the popularity of philosophy as a subject since you studied it?

It's gone down. Our college students today are far more practical. When I was in college, which was in the last hey-day of the radical movement, it was a more philosophically reflective time. Now, they want to get good jobs and get rich fast.

Despite this, and the fact that so many students are facing massive debt and a bleak economy, how can you make the case that they should study philosophy?

I wouldn't say that they must go into philosophy, and frankly, the field can't absorb that many people, but I would say that it's always a good thing to know, no matter what you go on to study—to be able to think critically. To challenge your own point of view. Also, you need to be a citizen in this world. You need to know your responsibilities. You're going to have many moral choices every day of your life. And it enriches your inner life. You have lots of frameworks to apply to problems, and so many ways to interpret things. It makes life so much more interesting. It's us at our most human. And it helps us increase our humanity. No matter what you do, that's an asset.

What do you think are the biggest philosophical issues of our time?

The growth in scientific knowledge presents new philosophical issues. The idea of the multiverse. Where are we in the universe? Physics is blowing our minds about this. The question of whether some of these scientific theories are really even scientific. Can we get predictions out of them? And with the growth in cognitive science and neuroscience. We're going into the brain and getting these images of the brain. Are we discovering what we really are? Are we solving the problem of free will? Are we learning that there isn't any free will? How much do the advances in neuroscience tell us about the deep philosophical issues? These are the questions that philosophers are now facing. But I also think, to a certain extent, that our society is becoming much more secular. So the question about how we find meaning in our lives, given that many people no longer look to monotheism as much as they used to in terms of defining the meaning of their life. There's an undercurrent of a preoccupation with this question. With the decline of religion is there a sense of the meaninglessness of life and the easy consumerist answer that's filling the space religion used to occupy? This is something that philosophers ought to be addressing.